Fuel becoming less available and 2,000 jobs being lost if the government sets petrol import tariffs to 0%, potentially causing two oil refineries to close

UK patients having to wait longer for medicines, including insulin and flu vaccines

A rise in public disorder and community tensions resulting from a shortage of food and drugs

Passengers being delayed at EU airports, Eurotunnel and Dover

Freight disruption at ports lasting up to three months, caused by customs checks, before traffic flow improves to 50-70% of the current rate

Image copyrightAFP/Getty ImagesImage caption
The dossier warns of disruption at ports, along with food, fuel and medicine shortages

A No 10 source told the BBC the dossier had been leaked by a former minister in an attempt to influence discussions with EU leaders.

They added that the document "is from when ministers were blocking what needed to be done to get ready to leave and the funds were not available".

Responding to the leak, Mr Gove said some of the concerns about a no-deal Brexit had been "exaggerated".

He said: "It's certainly the case that there will be bumps in the road, some element of disruption in the event of no-deal.

"But the document that has appeared in the Sunday Times was an attempt, in the past, to work out what the very, very worst situation would be so that we could take steps to mitigate that.

"And we have taken steps."

Mr Gove also claimed some MPs were "frustrating" the government's chances of securing a new deal with the EU.

He said: "Sadly, there are some in the House of Commons who think they can try to prevent us leaving on October 31st. And as long as they continue to try to make that argument, then that actually gives some heart to some in the European Union that we won't leave on October 31st.

"The sooner that everyone recognises that we will leave on that day, the quicker we can move towards a good deal in everyone's interests."

Business minister Kwasi Kwarteng told Sky News' Sophy Ridge on Sunday: "I think there's a lot of scaremongering around and a lot of people are playing into project fear."

'Completely insane'

But a former head of the civil service, Lord Kerslake - who described the document as "credible" - said the dossier "lays bare the scale of the risks we are facing with a no-deal Brexit in almost every area".

"These risks are completely insane for this country to be taking and we have to explore every avenue to avoid them," he told BBC Radio 4's Broadcasting House.

Irish Deputy Prime Minister Simon Coveney said, in a tweet, that Dublin had "always been clear" a hard border in Ireland "must be avoided".

The Irish backstop - the provision in former prime minister Theresa May's withdrawal agreement that could see Northern Ireland continue to follow some of the same trade rules as the Republic of Ireland and the rest of the EU, thus preventing a hard border - was an "insurance policy" designed to protect the peace process, he said.

The leak comes as the prime minister prepares to travel to Berlin to meet German Chancellor Angela Merkel on Wednesday, before going to Paris to see French President Emmanuel Macron on Thursday.

Mr Johnson is expected to say Parliament cannot and will not change the outcome of the 2016 EU referendum and will insist there must be a new deal to replace Mrs May's withdrawal agreement - defeated three times by MPs - if the UK is to leave the EU with a deal.

However, it is thought their discussions will chiefly focus on issues such as foreign policy, security, trade and the environment, ahead of the G7 summit next weekend.

Meanwhile, a cross-party group of more than 100 MPs has urged the prime minister to recall Parliament and let it sit permanently until the UK leaves the EU.

In a letter, MPs say the country is "on the brink of an economic crisis".

Elsewhere, anti-Brexit campaigner Gina Miller said the government had "unequivocally" accepted it could not shut down Parliament to clear the way for a no-deal Brexit.

She told Sky's Sophy Ridge On Sunday: "What they have said is, unequivocally, they accept that to close down Parliament, to bypass them in terms of Brexit - stopping a no-deal Brexit, in particular - is illegal."

Ms Miller said she would continue to seek further reassurances that MPs would be able to pass legislation to stop a no-deal Brexit.

Image copyrightReutersImage caption
Anti-Brexit campaigner Gina Miller said the government had accepted it could not shut down Parliament to clear the way for a no-deal Brexit